Install gir1.2-budgie-1.0 by entering the following commands in the terminal:
sudo apt update sudo apt install gir1.2-budgie-1.0
Description:
GNOME introspection library for budgie-desktop
Budgie-Desktop is a GTK+ based desktop environment which focuses on simplicity and elegance. It provides a traditional desktop metaphor based interface utilising customisable panel based menu driven system. Budgie-Desktop is written from scratch utilising many GNOME based sub-systems such as GNOME-Session and Mutter. . This is the introspection library and allows creating plugins in python3, C and Vala
Homepage: https://solus-project.com/budgie/
Version: 10.4+git20171031.10.g9f71bb8-1.2ubuntu1
Section: universe/introspection